body{
    background: #F0F3F4;
    overflow: hidden;
}
.container{
    display: flex;
}
.menu::-webkit-scrollbar{
    display: none;
}
.menu{
    width: 220px;
    height: 100vh;
    overflow: auto;
    line-height: 50px;
    background: #1C2B36;
    color: #7B94A6;
    font-size: 14px;
}
.menu .logo{
    padding-left: 25px;
    color: #DFE4ED;
    font-size: 20px;
    font-weight: bold;
}
.mainbody{
    flex: 1;
}
.menu .classify{
    color: #5c798f;
    padding-left: 15px;
}
.menu .secondary{
    position: relative;
    padding: 0 25px;
    cursor: pointer;
    border-left: 0px solid #1799C0;
}
.menu .secondary .center{
    margin-left: 10px;
}
.menu .secondary .right{
    position: absolute;
    right: 25px;
}
.change{
    color: #fff;
    font-weight: bold;
    background: #131E26;
    transition: .3s;
}
.drop_list{
    height: 0;
    color: #5c798f;
    overflow: hidden;
    background: #131E26;
}
.drop_list li{
    padding-left: 50px;
    cursor: pointer;
}
.menu .secondary:hover{
    background: #131E26;
    font-weight: bold;
    transition: .3s;
    color: #fff;
}
.left_border{
    border-left: 5px solid #1799C0 !important;
    transition: .3s;
}
.left_border li:hover {
    color: #fff;
}
.search{
    display: flex;
    height: 50px;
    background: #1C2B36;
    position: relative;
    display: flex;
}
.search .btn{
    align-self: center;
    width: 38px;
    height: 30px;
    margin-left: 10px;
    border-radius: 3px;
    background: #23B7E5;
    color: #fff;
    line-height: 30px;
    text-align: center;
    font-size: 20px;
    cursor: pointer;
}
.search .btn:hover{
    background: #19A9D5;
}
.search .input{
    align-self: center;
    margin-left: 20px;
    height: 30px;
    width: 200px;
    color: #ddd;
    background: rgba(0,0,0,0);
    border: none;
    border-bottom: 1px solid #23B7E5;
    text-indent: .5em;
}
.search .input::placeholder{
    color:#ddd;
}
.search .bell{
    color: #23B7E5;
    font-size: 40px;
    line-height: 50px;
    position: absolute;
    right: 5px;
    cursor: pointer;
}
.search .bell .amount{
    position: absolute;
    top: 5px;
    right: 0;
    padding: 0 5px;
    line-height: 15px;
    font-size: 10px;
    background: #F8AC59;
    color: #fff;
    border-radius: 5px;
}
.mainbody iframe{
    border: none;
    width: 100%;
    height: 100%;
}